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Alkali Metals

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Hydrogen (H) is also in group 1 aswell as the Alkali Metals but it has very few things in common with them so it is not concidered an Alkali Metal.

They are highly reactive.

Never found in their element form anywhere in nature.

Usually stored in mineral oil or kerosene (paraffin oil).

They have low melting points

They have low densities

All of the elements from the Alkali Metals group are soft metals.

What Do They Look Like?

Most of the time they’re silver coloured

An exception is caesium because it has a golden tint.

All the alkali metals react intensively with halogens to form ionic salts.

* Ionic salts- usually the result of neutralization from the reaction of an acid and a base. Salts are neutral ( without a charge) composed of cations and anions ( positively and negatively charged ions).

All react with water to make strongly alkaline hydroxides.

( Alkalinehydroxides- class of chemical compounds which is made up of alkali metal cation and hydroxide anion.)

The reactivity increases down the group.

All of the atoms in alkali metals have one electron in their outer electron shells. To become stable they have to give off one electron to elements with seven electrons in their outer shell making it eight, also stable. Then they become single charged positive ions (cations).